WO2011095862A1 - Installation pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire - Google Patents

Installation pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire Download PDF

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Publication number
WO2011095862A1
WO2011095862A1 PCT/IB2011/000151 IB2011000151W WO2011095862A1 WO 2011095862 A1 WO2011095862 A1 WO 2011095862A1 IB 2011000151 W IB2011000151 W IB 2011000151W WO 2011095862 A1 WO2011095862 A1 WO 2011095862A1
Authority
WO
WIPO (PCT)
Prior art keywords
plant
mould elements
fact
horizontal
elements
Prior art date
Application number
PCT/IB2011/000151
Other languages
English (en)
Inventor
Luciano Passoni
Original Assignee
Sir S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sir S.P.A. filed Critical Sir S.P.A.
Priority to EP11710276.4A priority Critical patent/EP2531333B1/fr
Publication of WO2011095862A1 publication Critical patent/WO2011095862A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps

Definitions

  • the present invention relates to a plant for the pressure slip casting of hygienic- sanitary articles.
  • Plants which, by means of the casting of ceramic material in the form of slip inside specific moulds, allow manufacturing hygienic-sanitary articles such as lavatory pans, WCs, bidets, washbasins or the like.
  • Such plant has a plurality of opening and closing moulds, each mould having a lower mould element, two side mould elements, an upper mould element and a cross mould element.
  • the closing of the side mould elements is by means of two special side cylinders which bring them together and keep them tight in an axial direction.
  • the plant envisages the use of specific vertical retention rods, which are integrated in the side mould elements and which, in the lower part, can be fastened to the lower mould elements, while in the upper part, they can be fastened to specific automated fastening devices.
  • Such automated fastening devices in practice, consist of a through hole obtained at the top of the retention rods and in corresponding fork elements, mounted on the upper mould elements and having through openings placeable, in closed mould configuration, substantially coinciding with the holes of the retention rods, to allow fitting a link pin.
  • the plant according to the document EP 0 885 701 envisages, for each mould, the use of an upper cylinder arranged vertically which, once the retention rods have been tightened, if necessary allows hydraulically pressing the upper mould element against the other mould elements to increase the closing force of the mould.
  • the closing system of the side mould elements which, as has been said, consists of two special side cylinders, is also particularly inconvenient because it uses release systems that place too much stress on the supporting structure.
  • the main aim of the present invention is to provide a plant for the pressure slip casting of hygienic-sanitary articles which allows manufacturing products such as lavatory pans, WCs, bidets, washbasins or the like in a practical and easy way and which is particularly simple from both a structural and functional viewpoint.
  • One object of the present invention is to provide a plant with particularly low manufacturing, installation and running cost, so as to be very attractive from an economic viewpoint for the end user, both in terms of lower investment cost and less running expenses.
  • Another object of the present invention is to provide a plant for the pressure slip casting of hygienic-sanitary articles that allows overcoming the mentioned drawbacks of the state of the art within the ambit of a simple, rational, easy and effective to use solution.
  • the present plant for the pressure slip casting of hygienic-sanitary articles comprising a base frame supporting at least two side mould elements and two horizontal mould elements, one of which lower and one upper, said mould elements being reciprocally mobile between an opening configuration and a closing configuration in which said mould elements define an inner cavity for the pressure slip casting of ceramic material and the forming of hygienic-sanitary articles, and tightening means of said mould elements in said closing configuration which comprise at least a retention tie- rod which is mounted on at least one of said side mould elements, or horizontal mould elements, and having two opposite extremities that can be fastened onto said horizontal mould elements, or side mould elements, at least one of said opposite extremities comprising at least one swelling and said tightening means comprising at least a swinging bracket mounted on at least one of said horizontal mould elements, or side mould elements, and at least a hydraulic actuator suitable for operating said swinging bracket between a first idle configuration and a second fastening configuration of said swelling, characterised by the fact that it comprises at least a pressure transducer suitable
  • figure 1 is an axonometric view of the plant according to the invention in opening configuration
  • figure 2 is a front view of the plant according to the invention in opening configuration
  • figure 3 is an axonometric view of the plant according to the invention in closing configuration
  • figure 4 is a front view of the plant according to the invention in closing configuration
  • figure 5 is a front view, on an enlarged and partially section view, of a detail of the plant according to the invention in closing configuration
  • figure 6 is a front view, on an enlarged and partially section view, of another detail of the plant according to the invention in closing configuration;
  • figure 7 is a side view of the plant according to the invention in closing configuration.
  • globally indicated by 1 is a plant for the pressure slip casting of hygienic-sanitary articles.
  • the plant 1 in particular, is suited for the production of hygienic-sanitary articles 2 of the type of lavatory pans, WCs, bidets, washbasins or the like.
  • the plant 1 comprises a base frame 3a, 3b split into a platform 3a, substantially horizontal, and a post 3b standing at one extremity of the platform 3 a along a substantially vertical but slightly oblique direction.
  • the mould elements 4, 5, 6, 7 are reciprocally mobile between an opening configuration, wherein they are substantially away from one another for picking up the hygienic-sanitary article 2 at the end of casting, and a closing configuration, wherein they are slotted near one another and define a whole mould with an inner cavity 27 for the pressure casting of the ceramic slip and forming of the hygienic-sanitary article 2.
  • each mould element 4, 5, 6, 7 is split into a shaped body 4a, 5a, 6a, 7a, which is made of porous material and has a particular forming print for obtaining the hygienic-sanitary article 2, and into a rigid frame 4b, 5b, 6b, 7b which supports the corresponding shaped body 4a, 5a, 6a, 7a.
  • the fixed side mould element 4 is mounted directly on the base frame 3a, 3b, with the corresponding rigid frame 4b bolted onto the platform 3a and onto the base of the post 3b and the corresponding shaped body 4a extending overhanging on the platform 3 a.
  • the mobile side mould element 5 is mounted on a first guiding structure 8 sliding on the platform 3a along a first substantially horizontal sliding direction A.
  • the platform 3a has a first longitudinal guide 9, made e.g. of a plurality of horizontal rails, and the first guiding structure 8 is defined by a carriage with wheels engaged along the horizontal rails 9.
  • the first guiding structure 8 supports the rigid frame 5b of the mobile side mould element 5, which in turn supports the corresponding shaped body 5 a extending overhanging on the platform 3a towards the fixed side mould element 4.
  • the lower horizontal mould element 6 is mounted on a second guiding structure 10 which slides along the first sliding direction A.
  • the second guiding structure 10, e.g., is made of a corresponding carriage with wheels engaged on the horizontal rails 9 and supports the rigid frame 6b of the lower horizontal mould element 6, which in turn supports the corresponding shaped body 6a turned upwards.
  • the upper horizontal mould element 7 is mounted on a third guiding structure 11 sliding on the post 3b along a second sliding direction B substantially vertical and parallel to the post 3b.
  • a second guide 12 is envisaged, composed e.g. of a series of vertical profiles mounted on the opposite sides of the post 3b.
  • the third guiding structure 11 comprises a pair of support plates which are engaged sliding along the vertical profiles 12 and which support overhanging the rigid frame 7b of the upper horizontal mould element 7, with the corresponding shaped body 7a facing downwards.
  • the plant 1 shown in the illustrations also envisages a cross mould element 13, it too split into a shaped body 13a and into a rigid frame 13b supporting the shaped body 13a.
  • the cross mould element 13 is mounted on a fourth guiding structure 14 associated with the second guiding structure 10 and sliding with respect to the base frame 3a, 3b along a third sliding direction C substantially horizontal but slightly oblique, which is at right angles both to the first sliding direction A and to the second sliding direction B.
  • the shaped body 13a of the cross mould element 13 can be moved near to the lower horizontal mould element 6 before the reciprocal closing of the side mould elements 4, 5, so as to fit it slotted between the shaped bodies 4a, 5a of the side mould elements 4, 5 in a special housing 15 obtained in it.
  • the plant 1 has tightening means 16, 17, 18 for tightening the side mould elements 4, 5 and the horizontal mould elements 6, 7 in the closing configuration.
  • the tightening means 16, 17, 18 comprise at least a retention tie-rod 16 which is mounted on at least one of the side mould elements 4, 5, i.e. horizontal mould elements 6, 7, and has two opposite extremities which can be fastened to the horizontal mould elements 6, 7, i.e. side mould elements 4, 5.
  • the particular tightening means 16, 17, 18 envisaged on the plant 1 can also comprise only one retention tie-rod 16 mounted on the side mould elements 4, 5, in which case the corresponding swinging bracket 17 and the corresponding hydraulic actuator 18 are mounted on one of the horizontal mould elements 6, 7, or, vice versa, envisage just one retention tie-rod 16 mounted on the horizontal mould elements 6, 7, in which case the corresponding swinging bracket 17 and the corresponding hydraulic actuator 18 are mounted on one of the side mould elements 4, 5.
  • the tightening means 16, 17, 18 envisaged in the embodiment of the plant 1 shown in the illustrations comprise a plurality of retention tie-rods 16 and an equal number of swinging brackets 17 operated by corresponding hydraulic actuators 18.
  • retention tie-rods 16 for each side mould element 4, 5 and for each horizontal mould element 6, 7 and these are mounted in a floating way on the corresponding rigid frames 4b, 5b, 6b, 7b, by "floating" being meant the fact that the retention tie-rods 16 are mounted with play in specific longitudinal seats 4c, 5c, 6c, 7c obtained passing from side to side on the corresponding rigid frames 4b, 5b, 6b, 7b.
  • the retention tie-rods 16 mounted on the side mould elements 4, 5 are substantially vertical and parallel to the second sliding direction B while those mounted on the horizontal mould elements 6, 7 are substantially horizontal and parallel to the first sliding direction A.
  • the swinging brackets 17 and the respective hydraulic actuators 18, on the other hand, are mounted on the upper horizontal mould element 7, for fastening the substantially vertical retention tie-rods 16 borne by the side mould elements 4, 5, and on the mobile side mould element 5, for fastening the substantially horizontal retention tie-rods 16 borne by the horizontal mould elements 6, 7.
  • the swinging brackets 17 comprise a U extremity 20 which in the second fastening configuration is locatable astride the corresponding retention tie-rod 16 against the swelling 19 for the retention of the tie-rod itself.
  • the swinging brackets 17 also comprise a substantially median portion which is hinged to the corresponding mould element 5, 7 while the corresponding hydraulic actuator 18 is suitable for pushing the swinging bracket 17 from the substantially opposite side of the U extremity 20 by levering on its hinge point 21.
  • the swinging brackets 17 and the hydraulic actuators 18 mounted on the top of the mobile side mould element 5 and intended to fasten onto the retention tie-rods 16 of the upper horizontal mould element 7 are associated together by means of a link pin 22 which is integral with the rod of the hydraulic actuator 18 and which is mounted with play in a hole of the swinging bracket 17 (figure 6).
  • the swinging brackets 17 and the remaining hydraulic actuators 18, i.e. those mounted on the upper horizontal mould element 7 as well as those mounted at the base of the mobile side mould element 5 and intended to fasten onto the retention tie-rods 16 of the lower horizontal mould element 6, are reciprocally connected by means of a return connecting rod 23 associated with play with the relative hydraulic actuator 18.
  • each return connecting rod 23 has a substantially curved shape and, at one extremity, it is hinged to the relative swinging bracket 17 in the proximity of its hinge point 21 and, at the opposite extremity, it has an elongated slot 24 wherein a pivot is engaged associated with the hydraulic actuator 18.
  • FIG. 5 shows a detailed partially section view of the plant 1 in closed configuration wherein are visible two of the hydraulic actuators 18 mounted on the upper horizontal mould element 7, one of which is arranged in the first idle configuration while the other is placed in the second fastening configuration.
  • extremities of the retention tie-rods 16 opposite the swellings 19 have a shoulder 25, substantially identical to the swellings 19.
  • Each shoulder 25 is intended to fasten onto a corresponding U body 26 fastened onto the rigid frame 4b, 6b of the adjacent mould element 4, 6 so that in the second fastening configuration the U body 26 is positioned astride the corresponding retention tie-rod 16 and against the shoulder 25.
  • the swellings 19 and the shoulders 25 are composed, e.g., of an equal number of large washers mounted on the retention tie-rods 16 in an adjustable way; in particular, the retention tie-rods 16 have an adjustment thread onto which the large washers 19, 25 can be screwed in order to be able to adjust their relative position.
  • the opposite extremities of the retention tie- rods 16 are to be fastened onto by the U extremities 20 and by the U bodies 26 and to be driven by means of the operation of the swinging brackets 17, so as to block the mould elements 4, 5, 6, 7 and keep the mould closed during casting.
  • the plant 1 has one or more pressure transducers 28 suited to detect the pressure in the inner cavity 27 defined in closing configuration of the mould during casting, and regulation means 29 which are suited to regulate the hydraulic pressure in the hydraulic actuators 18 and are interlocked to the pressure transducers 28.
  • the pressure transducers 28, e.g., are arranged between the shaped bodies 4a, 5a, 6a, 7a and the corresponding rigid frames 4b, 5b, 6b and 7b.
  • the regulation means 29, consist e.g. of a hydraulic unit for the management and control of the supply in the hydraulic actuators 18, which allows increasing or reducing the pressure exercised by the hydraulic actuators 18 on the swinging brackets 17 and, consequently, the closing force of the mould elements 4, 5, 6, 7.
  • the pressure of the slip injected into the mould can vary considerably and the pressure transducers 28 detect these variations; the hydraulic unit 29, connected to the pressure transducers 28, reacts accordingly allowing the hydraulic actuators 18 to produce an offset force proportionate to the pressure inside the mould and, therefore, ensure the correct positioning of the mould elements 4, 5, 6, 7 during the entire casting operation without the risk of any movements of the mould deterniining the escape of the slip and/or the formation of burrs.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Food-Manufacturing Devices (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention porte sur une installation (1) pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire, laquelle installation comprend : - un châssis de base (3a, 3b) qui supporte deux éléments de moule latéraux (4, 5) et deux éléments de moule horizontaux (6, 7), dont l'un est un élément inférieur (2) et un autre un élément supérieur (7). Les éléments de moule (4, 5, 6, 7) étant mobiles l'un par rapport à l'autre entre une configuration d'ouverture et une configuration de fermeture dans laquelle les éléments de moule (4, 5, 6, 7) définissent une cavité interne (27) pour le coulage en barbotine sous pression d'une matière céramique et le formage d'articles du domaine hygiénique-sanitaire (2) ; des moyens de serrage (16, 17, 18) des éléments de moule (4, 5, 6, 7) dans une configuration de fermeture, qui comprennent au moins une colonne de presse de retenue (16) qui est montée sur au moins l'un des éléments de moule latéraux (4, 5) ou des éléments de moule horizontaux (6, 7) et a deux extrémités opposées qui peuvent être fixées sur les éléments de moule horizontaux (6, 7) ou les éléments de moule latéraux (4, 5) ; au moins un transducteur de pression (28) approprié pour détecter la pression dans la cavité interne (27) pendant le coulage en barbotine, et des moyens de régulation (29) destinés à réguler la pression hydraulique dans l'actionneur hydraulique (18) assemblé au transducteur de pression (28) ; dans lequel - au moins l'une des extrémités opposées des colonnes de presse comprend un renflement (19), et les moyens de serrage (16, 17, 18) comprenant au moins un support oscillant (17) monté sur au moins l'un des éléments de moule horizontaux (6, 7) ou des éléments de moule latéraux (4, 5), et au moins un actionneur hydraulique (18) approprié pour manœuvrer le support oscillant (17) entre une première configuration de desserrage et une seconde configuration de fixation du renflement (19).
PCT/IB2011/000151 2010-02-03 2011-02-01 Installation pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire WO2011095862A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11710276.4A EP2531333B1 (fr) 2010-02-03 2011-02-01 Installation pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO2010A000021A IT1398078B1 (it) 2010-02-03 2010-02-03 Impianto per il colaggio in pressione di articoli igienico-sanitari
ITMO2010A000021 2010-02-03

Publications (1)

Publication Number Publication Date
WO2011095862A1 true WO2011095862A1 (fr) 2011-08-11

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Application Number Title Priority Date Filing Date
PCT/IB2011/000151 WO2011095862A1 (fr) 2010-02-03 2011-02-01 Installation pour le coulage en barbotine sous pression d'articles du domaine hygiénique-sanitaire

Country Status (3)

Country Link
EP (1) EP2531333B1 (fr)
IT (1) IT1398078B1 (fr)
WO (1) WO2011095862A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600095433A1 (it) * 2016-09-22 2018-03-22 Siti B & T Group Spa Gruppo di formatura per la produzione di articoli sanitari
IT201700088775A1 (it) * 2017-08-01 2019-02-01 Siti B & T Group Spa Gruppo di formatura per la produzione di articoli sanitari
CN111300592A (zh) * 2020-03-27 2020-06-19 唐山贺祥机电股份有限公司 五开型座便器坯体高压成型机的模型开合系统及控制方法
CN111633782A (zh) * 2020-05-21 2020-09-08 佛山市鸣门卫浴科技有限公司 一种卫生洁具高压注浆成型生产方法及卫生洁具
CN114012870A (zh) * 2021-12-13 2022-02-08 南通金诺精细陶瓷有限公司 氧化铝陶瓷件成型设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11305457B2 (en) 2019-05-03 2022-04-19 James R. Glidewell Dental Ceramics, Inc. Pressure casting of submicron ceramic particles and methods of ejection
CN111605038B (zh) * 2020-06-18 2022-03-11 唐山贺祥智能科技股份有限公司 全自动翻转式座便圈多坯体高压生产工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2143132A1 (de) 1971-08-28 1973-03-01 Hennecke Gmbh Maschf Formwerkzeug, insbesondere fuer die fertigung von teilen aus duromerkunststoffen
JPH0222810A (ja) 1988-07-12 1990-01-25 Toshiba Corp 薄膜形成方法
JPH0222810U (fr) * 1988-07-28 1990-02-15
EP0885701A1 (fr) 1997-06-17 1998-12-23 SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. Installation de coulage sous pression pour la fabrication d'articles sanitaires

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2143132A1 (de) 1971-08-28 1973-03-01 Hennecke Gmbh Maschf Formwerkzeug, insbesondere fuer die fertigung von teilen aus duromerkunststoffen
JPH0222810A (ja) 1988-07-12 1990-01-25 Toshiba Corp 薄膜形成方法
JPH0222810U (fr) * 1988-07-28 1990-02-15
EP0885701A1 (fr) 1997-06-17 1998-12-23 SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. Installation de coulage sous pression pour la fabrication d'articles sanitaires

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600095433A1 (it) * 2016-09-22 2018-03-22 Siti B & T Group Spa Gruppo di formatura per la produzione di articoli sanitari
WO2018055458A1 (fr) * 2016-09-22 2018-03-29 Siti-B&T Group S.P.A. Unité de moulage pour la production d'articles sanitaires
IT201700088775A1 (it) * 2017-08-01 2019-02-01 Siti B & T Group Spa Gruppo di formatura per la produzione di articoli sanitari
WO2019025999A1 (fr) * 2017-08-01 2019-02-07 Siti-B&T Group S.P.A. Groupe de formage pour la production d'articles sanitaires
CN111300592A (zh) * 2020-03-27 2020-06-19 唐山贺祥机电股份有限公司 五开型座便器坯体高压成型机的模型开合系统及控制方法
CN111300592B (zh) * 2020-03-27 2021-06-25 唐山贺祥智能科技股份有限公司 五开型座便器坯体高压成型机的模型开合系统及控制方法
CN111633782A (zh) * 2020-05-21 2020-09-08 佛山市鸣门卫浴科技有限公司 一种卫生洁具高压注浆成型生产方法及卫生洁具
CN111633782B (zh) * 2020-05-21 2021-11-02 佛山市鸣门卫浴科技有限公司 一种卫生洁具高压注浆成型生产方法及卫生洁具
CN114012870A (zh) * 2021-12-13 2022-02-08 南通金诺精细陶瓷有限公司 氧化铝陶瓷件成型设备

Also Published As

Publication number Publication date
ITMO20100021A1 (it) 2011-08-04
EP2531333A1 (fr) 2012-12-12
EP2531333B1 (fr) 2014-01-15
IT1398078B1 (it) 2013-02-07

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